AlleyCat
2024-05-22 21:37:34 UTC
https://i.imgur.com/cw7pXyE.mp4
U.S. Hasn't Seen An EF5 Tornado In 11 Years, Longest Gap In (Recorded) History
Monstrous twisters of this magnitude can destroy entire neighborhoods in the blink of an eye, grow to be more
than a mile wide and pack winds over 200 mph - stronger than any Category 5 hurricane on record across the
Atlantic basin. [emphasis, links added]
On May 20, 2013, an extremely powerful tornado destroyed a huge part of Moore, Okla. Eleven years later, it
remains the most recent tornado to be rated EF5, the strongest possible rating on the Enhanced Fujita Scale.
The 11-year gap is the longest since official U.S. records began in 1950.
Before the Moore tornado, the blockbuster tornado season in 2011 led to the confirmation of five EF5
twisters, including the Joplin, Missouri, EF5 that killed 161 people. A total of 50 tornadoes have been rated
F5/EF5 since records began in the United States in 1950.
Because most weather instruments can't survive tornadoes, the EF scale estimates tornado strength based on
NWS staff investigating damage indicators.
Meteorologist Bob Henson said in 2023 that the current EF5 "drought" is hard to explain since damage
estimates can be subjective.
Damage to a "well-constructed building" is the most common factor that helps the National Weather Service
(NWS) confirm an EF5, yet many homes in the U.S. do not meet that criteria.
Henson quotes Tanya Brown-Giammanco, director of Disaster and Failure Studies at the National Institute of
Standards and Technology, who says that many houses are missing key features to be considered wind resistant,
disqualifying them from being used to determine if a twister reached EF5 status.
The Enhanced Fujita system is not likely to change from a ground-damage-based scale, Henson says, but new
standards may be implemented to improve rural damage assessments based on damage to wind turbines, irrigation
systems, farm silos, churches, and passenger vehicles.
The National Windstorm Impact Reduction Program at NIST is developing these standards, which would have to be
adopted by NOAA's Storm Prediction Center to change the Enhanced Fujita Scale.
Radar data, by definition measured above ground, cannot be used to rate tornadoes on the EF scale. This
precedent was reaffirmed by the El Reno tornado on May 31, 2013, which tracked just south of El Reno,
Oklahoma. At peak strength, Doppler radar measured winds over 300 mph.
The National Weather Service initially rated El Reno as an EF5, but subsequent damage investigations were
unable to find damage indicators above EF3 since it largely tracked over open fields.
Because of the damage found, the El Reno tornado, despite being the largest twister ever recorded at 2.6
miles wide, was confirmed as an EF3.
https://climatechangedispatch.com/author/ccdeditor/
https://climatechangedispatch.com/constructing-eco-unfriendly-solar-panels-over-californias-aqueducts-is-
newsom-level-stupid/
https://climatechangedispatch.com/extreme-weather/
https://climatechangedispatch.com/midwest-wind-turbine-bent-in-half-catches-fire-after-strong-thunderstorm/
https://climatechangedispatch.com/news/
https://climatechangedispatch.com/u-s-hasnt-seen-an-ef5-tornado-in-11-years-longest-gap-in-recorded-history/
https://climatechangedispatch.com/u-s-hasnt-seen-an-ef5-tornado-in-11-years-longest-gap-in-recorded-history/
#comments
Loading Image...
https://journals.ametsoc.org/view/journals/wefo/30/3/waf-d-14-00152_1.xml
https://www.accuweather.com/en/severe-weather/deadly-joplin-missouri-tornado-anniversary/943521
https://www.accuweather.com/en/severe-weather/reconstructing-the-storm-how-meteorologists-conduct-tornado-
damage-surveys/1509109
https://www.accuweather.com/en/weather-news/deadly-oklahoma-tornadoes-still-stand-out-in-record-books-10-
years-later/1515239
https://www.accuweather.com/en/weather-news/how-are-tornadoes-rated-using-the-enhanced-fujita-scale-2/432282
https://yaleclimateconnections.org/2023/05/the-u-s-hasnt-seen-an-ef5-tornado-in-almost-10-years-whats-going-
on/
=====
May:
Frozen Turkey
Rare May Snow Hits South Korea
Cold Front To Drop Snow On Aussie Alps
Chile's Capital In The Midst Of "Longest Cold Spell Ever Recorded"
South America Braces For Antarctic Outbreak
Australia's Coldest April Since 2015
Heavy Mid-May Snow Hits Turkey
Slovakia's Record May Cold
First 10-Days Of May In European-Russia The Coldest In History
Unprecedented May Snow Hits Moscow
Record May Cold Sweeps European-Russia
Russian Grain Growing Regions To Declare An Emergency
Record May Cold In Japan
"Patagonia Is Absolutely Buried"
Rare Snow Blankets Chile's Capital
Snowbird, Utah Surpasses 600 Inches
Alaska's Near-Record Snow Season Also Means "Big Fire Danger"
Australia Shivers
Spring Snow Continues To Build On Europe's Mountains As Winter's Cold Lingers
Mongolia's Snowiest Winter Since 1975
Much Of Russia Returned To Winter
Heavy Snow Hits Argentina A Month Early
Spain Chills
"Best May Powder Days In Memory" At Palisades
Cold Antarctic Coast
Heavy May Snow Hits the Sierra Nevada
Concordia Below -70C (-94F) for 10-Days
Cooling In The Tropical Pacific
Vostok's Coldest April Since 1999
Global Temperature Expected To Fall In May
Tonga Eruption Responsible For Toasty 2023 (nyah nyah!)
Missing Spring In Jackson, WY
Cool Summer Forecast For Much Of The Northern Hemisphere
Record May Cold Sweeps India
Rare April Cold Hits Antarctica (-112F)
Heavy Spring Snow Traps 1,000 Vehicles In Northern India
Wild Swings In New Jersey
The Wind Didn't Blow As Hard In 2023
U.S. Hasn't Seen An EF5 Tornado In 11 Years, Longest Gap In (Recorded) History
Monstrous twisters of this magnitude can destroy entire neighborhoods in the blink of an eye, grow to be more
than a mile wide and pack winds over 200 mph - stronger than any Category 5 hurricane on record across the
Atlantic basin. [emphasis, links added]
On May 20, 2013, an extremely powerful tornado destroyed a huge part of Moore, Okla. Eleven years later, it
remains the most recent tornado to be rated EF5, the strongest possible rating on the Enhanced Fujita Scale.
The 11-year gap is the longest since official U.S. records began in 1950.
Before the Moore tornado, the blockbuster tornado season in 2011 led to the confirmation of five EF5
twisters, including the Joplin, Missouri, EF5 that killed 161 people. A total of 50 tornadoes have been rated
F5/EF5 since records began in the United States in 1950.
Because most weather instruments can't survive tornadoes, the EF scale estimates tornado strength based on
NWS staff investigating damage indicators.
Meteorologist Bob Henson said in 2023 that the current EF5 "drought" is hard to explain since damage
estimates can be subjective.
Damage to a "well-constructed building" is the most common factor that helps the National Weather Service
(NWS) confirm an EF5, yet many homes in the U.S. do not meet that criteria.
Henson quotes Tanya Brown-Giammanco, director of Disaster and Failure Studies at the National Institute of
Standards and Technology, who says that many houses are missing key features to be considered wind resistant,
disqualifying them from being used to determine if a twister reached EF5 status.
The Enhanced Fujita system is not likely to change from a ground-damage-based scale, Henson says, but new
standards may be implemented to improve rural damage assessments based on damage to wind turbines, irrigation
systems, farm silos, churches, and passenger vehicles.
The National Windstorm Impact Reduction Program at NIST is developing these standards, which would have to be
adopted by NOAA's Storm Prediction Center to change the Enhanced Fujita Scale.
Radar data, by definition measured above ground, cannot be used to rate tornadoes on the EF scale. This
precedent was reaffirmed by the El Reno tornado on May 31, 2013, which tracked just south of El Reno,
Oklahoma. At peak strength, Doppler radar measured winds over 300 mph.
The National Weather Service initially rated El Reno as an EF5, but subsequent damage investigations were
unable to find damage indicators above EF3 since it largely tracked over open fields.
Because of the damage found, the El Reno tornado, despite being the largest twister ever recorded at 2.6
miles wide, was confirmed as an EF3.
https://climatechangedispatch.com/author/ccdeditor/
https://climatechangedispatch.com/constructing-eco-unfriendly-solar-panels-over-californias-aqueducts-is-
newsom-level-stupid/
https://climatechangedispatch.com/extreme-weather/
https://climatechangedispatch.com/midwest-wind-turbine-bent-in-half-catches-fire-after-strong-thunderstorm/
https://climatechangedispatch.com/news/
https://climatechangedispatch.com/u-s-hasnt-seen-an-ef5-tornado-in-11-years-longest-gap-in-recorded-history/
https://climatechangedispatch.com/u-s-hasnt-seen-an-ef5-tornado-in-11-years-longest-gap-in-recorded-history/
#comments
Loading Image...
https://journals.ametsoc.org/view/journals/wefo/30/3/waf-d-14-00152_1.xml
https://www.accuweather.com/en/severe-weather/deadly-joplin-missouri-tornado-anniversary/943521
https://www.accuweather.com/en/severe-weather/reconstructing-the-storm-how-meteorologists-conduct-tornado-
damage-surveys/1509109
https://www.accuweather.com/en/weather-news/deadly-oklahoma-tornadoes-still-stand-out-in-record-books-10-
years-later/1515239
https://www.accuweather.com/en/weather-news/how-are-tornadoes-rated-using-the-enhanced-fujita-scale-2/432282
https://yaleclimateconnections.org/2023/05/the-u-s-hasnt-seen-an-ef5-tornado-in-almost-10-years-whats-going-
on/
=====
May:
Frozen Turkey
Rare May Snow Hits South Korea
Cold Front To Drop Snow On Aussie Alps
Chile's Capital In The Midst Of "Longest Cold Spell Ever Recorded"
South America Braces For Antarctic Outbreak
Australia's Coldest April Since 2015
Heavy Mid-May Snow Hits Turkey
Slovakia's Record May Cold
First 10-Days Of May In European-Russia The Coldest In History
Unprecedented May Snow Hits Moscow
Record May Cold Sweeps European-Russia
Russian Grain Growing Regions To Declare An Emergency
Record May Cold In Japan
"Patagonia Is Absolutely Buried"
Rare Snow Blankets Chile's Capital
Snowbird, Utah Surpasses 600 Inches
Alaska's Near-Record Snow Season Also Means "Big Fire Danger"
Australia Shivers
Spring Snow Continues To Build On Europe's Mountains As Winter's Cold Lingers
Mongolia's Snowiest Winter Since 1975
Much Of Russia Returned To Winter
Heavy Snow Hits Argentina A Month Early
Spain Chills
"Best May Powder Days In Memory" At Palisades
Cold Antarctic Coast
Heavy May Snow Hits the Sierra Nevada
Concordia Below -70C (-94F) for 10-Days
Cooling In The Tropical Pacific
Vostok's Coldest April Since 1999
Global Temperature Expected To Fall In May
Tonga Eruption Responsible For Toasty 2023 (nyah nyah!)
Missing Spring In Jackson, WY
Cool Summer Forecast For Much Of The Northern Hemisphere
Record May Cold Sweeps India
Rare April Cold Hits Antarctica (-112F)
Heavy Spring Snow Traps 1,000 Vehicles In Northern India
Wild Swings In New Jersey
The Wind Didn't Blow As Hard In 2023